Prenatal stress, hormones, and fetal brain development: gender differences
Vasiliki Georgousopoulou1, Aspasia Serdari2, Georgios Manomenidis3
1Department of Nursing, Democritus University of Thrace, Alexandroupolis, Greece. vgeorgousopoulou@yahoo.gr.
Hormones (Athens, Greece)
|July 27, 2025
Summary
Prenatal stress impacts fetal brain development, especially in males, affecting key regions like the prefrontal cortex. Early interventions can mitigate these risks for improved neurodevelopmental outcomes.
Area of Science:
- Neuroscience
- Developmental Biology
- Psychiatry
Background:
- Prenatal stress is a significant risk factor for neurodevelopmental and psychiatric disorders.
- Maternal stress activates the hypothalamic-pituitary-adrenal (HPA) axis, increasing glucocorticoids that affect fetal brain development.
- Sex differences and maternal nutrition are critical factors in fetal stress response.
Purpose of the Study:
- To review the effects of prenatal stress on fetal brain development.
- To emphasize sex differences and the interplay of genetic, epigenetic, and environmental factors.
- To explore neuroimaging and intervention strategies.
Main Methods:
- Review of existing literature on prenatal stress and fetal neurodevelopment.
- Analysis of studies focusing on sex differences in stress response.
- Inclusion of data from neuroimaging techniques like MRI.
Main Results:
- Prenatal stress alters key brain regions (prefrontal cortex, hippocampus, amygdala) impacting cognition and emotion.
- Male fetuses show greater vulnerability with altered brain connectivity and heightened stress reactivity.
- Female fetuses may exhibit adaptive resilience mechanisms.
Conclusions:
- Prenatal stress profoundly impacts fetal brain development, with males being more vulnerable.
- Epigenetic modifications and maternal nutritional status play crucial roles in programming stress responses.
- Early interventions and identification of at-risk populations are vital for mitigating long-term risks.
Keywords:
Early interventionEpigeneticsFetal brain developmentHypothalamic–pituitary–adrenal axisMaternal healthNeurodevelopmentPrenatal stressSex differencesMore Related Videos
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